Flood Advisory
Flood Advisory
National Weather Service San Juan PR
244 AM AST Thu Oct 16 2025
PRC011-097-160915-
/O.NEW.TJSJ.FA.Y.0563.251016T0644Z-251016T0915Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Anasco PR-Mayaguez PR-
244 AM AST Thu Oct 16 2025
...FLOOD ADVISORY IN EFFECT UNTIL 515 AM AST EARLY THIS MORNING...
* WHAT...Urban and small stream flooding caused by excessive
rainfall is expected.
* WHERE...Anasco and Mayaguez.
* WHEN...Until 515 AM AST.
* IMPACTS...Minor flooding in low-lying and poor drainage areas.
Water over roadways.
* ADDITIONAL DETAILS...
- At 244 AM AST, Doppler radar indicated heavy rain due to
thunderstorms. This will cause urban and small stream
flooding. Up to 1.5 inches of rain have fallen.
- Additional rainfall amounts of 1 to 3 inches are expected
over the area. This additional rain will result in minor
flooding.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.
&&
LAT...LON 1832 6712 1830 6704 1827 6704 1825 6708
1825 6706 1821 6703 1820 6702 1819 6702
1817 6708 1815 6709 1816 6711 1815 6716
1820 6713 1821 6715 1823 6717 1829 6719
1830 6722
$$
CVB
Flood Advisory
National Weather Service San Juan PR
205 AM AST Thu Oct 16 2025
PRC003-005-099-117-160915-
/O.NEW.TJSJ.FA.Y.0562.251016T0605Z-251016T0915Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Aguada PR-Aguadilla PR-Moca PR-Rincon PR-
205 AM AST Thu Oct 16 2025
...FLOOD ADVISORY IN EFFECT UNTIL 515 AM AST EARLY THIS MORNING...
* WHAT...Urban and small stream flooding caused by excessive
rainfall is expected.
* WHERE...Aguada, Aguadilla, Moca and Rincon.
* WHEN...Until 515 AM AST.
* IMPACTS...Minor flooding in low-lying and poor drainage areas.
Water over roadways.
* ADDITIONAL DETAILS...
- At 204 AM AST, Doppler radar indicated heavy rain due to
thunderstorms. This will cause urban and small stream
flooding. Up to 1.5 inches of rain have fallen.
- Additional rainfall amounts of 1 to 3 inches are expected
over the area. This additional rain will result in minor
flooding.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.
&&
LAT...LON 1840 6717 1841 6718 1842 6716 1848 6717
1851 6714 1851 6710 1849 6708 1848 6706
1839 6703 1835 6705 1833 6704 1831 6705
1832 6712 1832 6713 1832 6717 1830 6723
1837 6727
$$
CVB
Marine Weather Statement
Marine Weather Statement
National Weather Service San Juan PR
1115 PM AST Wed Oct 15 2025
AMZ711-161100-
Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-
1115 PM AST Wed Oct 15 2025
A Marine Weather Statement has been issued for the following areas...
Atlantic Waters of Puerto Rico AND USVI from 10 NM to 19.5N...
At 1110 PM AST, Doppler radar indicated a line of strong thunderstorms,
capable of producing winds to around 30 knots. These thunderstorms
are just over the northwestern portions of our local waters but
will continue to spread over the offshore Atlantic Waters throughout
the night. They are moving southeast at 15 knots.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Mariners can expect gusty winds to around 30 knots, locally higher
waves, lightning strikes, and heavy downpours. Boaters should seek
safe harbor immediately until these storms pass.
These strong thunderstorms will likely produce winds in excess of
34 knots, and is likely to pose a serious hazard for boaters. A
special marine warning will likely be required when these storms
reach the nearshore waters. Boaters should consider heading for
shore before these storms arrive.
Intense lightning is occurring with these storms. If caught on the
open water stay below deck if possible, keep away from ungrounded
metal objects.
Report severe weather to the Coast Guard or nearest law enforcement
agency. They will relay your report to the National Weather Service
forecast office.
$$
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service San Juan PR
459 AM AST Wed Oct 15 2025
AMZ711>745-PRZ001>013-161000-
San Juan and Vicinity-Northeast-Southeast-Eastern Interior-
North Central-Central Interior-Ponce and Vicinity-Northwest-
Western Interior-Mayaguez and Vicinity-Southwest-Culebra-Vieques-
The nearshore and off shore Atlantic and Caribbean Coastal Waters-
459 AM AST Wed Oct 15 2025
This Hazardous Weather Outlook is for portions of Puerto Rico.
.DAY ONE...Today and Tonight
.Lightning...Isolated thunderstorms, particularly across central
to northern and northeastern sections in the afternoon, but
lingering into the evening hours. Stay alert and be prepared to
take shelter if storms develop.
.Excessive Rainfall...Flooding in urban areas, roads, small
streams, and washes, particularly across areas experiencing
lightning impacts. There is a low chance of isolated flash
floods. Elsewhere, plan for water ponding on roads and in poorly
drained areas.
.Excessive Heat...This level of heat affects most individuals
sensitive to heat, especially those without effective cooling
and/or adequate hydration. Those extremely sensitive to heat face
the highest risk. Some health systems and heat-sensitive
industries could be affected.
.Rip Currents...Life-threatening rip currents are possible in the
surf zone, particularly across northern and eastern Puerto Rico
and Culebra. Isolated stronger rip currents may occur elsewhere,
especially near piers, jetties, and channels.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday
Daily afternoon thunderstorms will bring limited to elevated
flooding and lightning risks, focusing over northeastern Puerto
Rico late this week before shifting back toward northwestern
sections early next week. A nearby frontal boundary and pre-
frontal trough will enhance moisture, instability, and weak
steering flow, allowing storms to persist longer and increase
impacts through the latter part of the week. Heat hazards will
remain elevated through the workweek and extend into early next
week. A moderate rip current risk continues along northern and
eastern beaches, but incoming long- period swells late week into
the weekend will create hazardous to life- threatening surf and
rip currents, while strengthening winds may further deteriorate
marine conditions and pose coastal wind hazards.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed.
$$
Hazardous Weather Outlook
National Weather Service San Juan PR
459 AM AST Wed Oct 15 2025
AMZ716-726-VIZ001-002-161000-
St. Thomas St. John adjacent Islands-St Croix-
Nearshore Atlantic and adjacent Caribbean Coastal Waters-
459 AM AST Wed Oct 15 2025
This Hazardous Weather Outlook is for portions of USVI.
.DAY ONE...Today and Tonight
.Lightning...Isolated thunderstorms. Stay alert and be prepared
to take shelter if storms develop.
.Excessive Rainfall...Ponding of water in roads and poorly
drained areas. There is a low chance of localized urban and small
streams flooding.
.Excessive Heat...This level of heat affects most individuals
sensitive to heat, especially those without effective cooling
and/or adequate hydration. Those extremely sensitive to heat face
the highest risk. Some health systems and heat-sensitive
industries could be affected.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday
A nearby frontal boundary and pre- frontal trough will enhance
moisture, instability, and weak steering flow, allowing storms to
persist longer and increase impacts through the latter part of the
week. Heat hazards will remain elevated through the workweek and
extend into early next week. Incoming long- period swells late
week into the weekend will create hazardous to life-threatening
surf and rip currents, while strengthening winds may further
deteriorate marine conditions and pose coastal wind hazards.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed.
$$
